漏洞描述
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
影响产品
暂无结构化产品信息。
修复建议
建议关注厂商安全公告，及时升级至已修复版本，并结合实际资产暴露情况采取缓解措施。
参考链接
www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/16/2↗www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/16/3↗access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-50387↗bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1219823↗docs.powerdns.comhttps://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html↗gitlab.nic.czhttps://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1↗kb.isc.orghttps://kb.isc.org/docs/cve-2023-50387↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/02/msg00006.html↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/05/msg00011.html↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/↗lists.thekelleys.org.ukhttps://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html↗msrc.microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387↗news.ycombinator.comhttps://news.ycombinator.com/item?id=39367411↗news.ycombinator.comhttps://news.ycombinator.com/item?id=39372384↗nlnetlabs.nlhttps://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/↗security.netapp.comhttps://security.netapp.com/advisory/ntap-20240307-0007/↗www.athene-center.dehttps://www.athene-center.de/aktuelles/key-trap↗www.athene-center.dehttps://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf↗www.isc.orghttps://www.isc.org/blogs/2024-bind-security-release/↗www.securityweek.comhttps://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/↗www.theregister.comhttps://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00001.html↗lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/11/msg00035.html↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/↗lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/↗